Package and method of and means for making the same



J. W. FAY

Oct. 31, 1939.

PACKAGE AND METHOD OF AND MEANS FOR MAKING THE SAME Filed Nov. 15, 1956 4 he shee 1 Oct. 31, 1939.

J. W. FAY

PACKAGE AND METHOD OF AND MEANS FOR MAKING THE SAME Filed Nov. 13, 1936 4 Sheets-Sheet 2 J. W. FAY

Oct. 31, 1939.-

PACKAGE AND METHOD OF AND MEANS FOR MAKING THE SAME 4 Sheets-Sheet 3 Filed Nov. 13, 1936 jig J0.

PACKAGE AND METHOD CF AND MEANS FOR MAKING THE, SAME Filed Nov. 13,1936 4 SheetsSheet 4 s w '7 Q\ N F i9 1%56 W: jig, W/W J MZZZZQS Patented Oct. 31, 1939 PACKAGE AND METHOD OF AND NIEANS FOR MAKING THE SAME M Joseph W. Fay, Villa Park, Ill., assignor to Peck- O-Fun 00., Chicago, 111., a corporation of Illinois A Application November 13 1936, Serial No. 110,672

13 Claims.

This invention relates to a package and the method of and means for making the same.

The particular embodiment of the invention which I shall describe hereinafter in connection with the drawings is a moisture-proof bag or package for marketing candied popcorn, candy, peanuts and other confections, foodstuffs, and the like, which are subject to the deleterious effects of moisture. It is to be understood, however, that the invention is not limited to use with the particular goods above referred to, but may be employed for marketing other goods as suitable or desired.

One of the objects of the present invention is to provide an improved package, and method of and means for making the same, adapted for expeditiously and inexpensively packaging the goods. I

It is also an object of the invention to provide an improved bag or package of simple and inexpensive construction and which will effectively protect the goods from moisture. In this respect the bag or package of the present invention is particularly adapted for marketing small quantitles of candied popcorn, peanuts, and other confections at low cost, but it is to be understood that the bag or package of the present invention is in nowise limited to such use.

Another object is to provide for sealing the bag 30 by heat and pressure, and preferably by means of the moisture-proof substance on the bag material and without an inner carton for backing the flexible bag material. In its more limited aspects, this is accomplished by forming the bag about 36' a rigid shaping form which constitutes a back-' waxed or paraffined paper bag or package which is effectively sealed to protect the contents of the bag or package without the necessity for applying additional wax or ,parafllne to the ag or package after filling the bag with the desi ed contents and closing and sealing the same/ Another object of the invention is to provide a waxed or parafllned paper bag or package which may be sealed at the bottom, and elsewhere as 55 desired, by additional wax or parafline before Another objectof the invention is to provide a filling the bag with the desired contents and closing and sealing the top of the bag.

The present invention also provides a Cellophane bag which is sealed throughout by heat and pressure without the necessity of an inner 5 carton instead of being glued as commonly done heretofore in the art, and still further, a double thickness bag as will hereinafter appear.

According to the present invention, the bag forming sheet is wrapped around a shaping form 10 with the opposite edges of the sheet overlapping and the ends of the sheet extending beyond the ends of the form. The overlapping edges are sealed preferably" by heat and pressure, and the narrow sides of the extending ends are folded in. 5 The end flaps are folded closed with. one end flap overlying the other end flap at each end of the wrapper and the closed end flaps are sealed, preferably by heat and pressure. If desired, where the bag is formed of waxed or paraflinedpaper, 0 additional wax or parafline may be applied to the ends of the wrapper thus formed, as by dipping, spraying, or the like.

Thereafter the wrapper is divided intermediate its ends into two corresponding open-ended bags 25 or packages. These bags are filled through the open ends thereof, whereupon the open ends are closed and sealed, preferably by the application of heat and pressure. Where the bag is formed of waxed or paraffined paper, it is not necessary to. apply additional wax after filling and closing and sealing the bags, and the capacity of the method and means is double the wrapper forming capacity.

Further objects and advantages and numerous adaptations of the invention will more fully appear from the following detailed description, taken in connection with the accompanying drawings, in which:

Figure l is a more or less diagrammatic side 0 elevational view showing one embodiment of the method of and means for forming bags or packages in accordance with the present invention;

Figure 2 is a similar view showing the remaining portion of the method and means shown in Figure 1'; Figure 3 is a more or less diagrammatic top plan view showing the method of and means for forming the bags or packages as shown in Figure 1;

Figure 4 is a more or less diagrammatic top plan view showing the remainder of the method and means of the present invention, as shown in Figure 2;

Figure 5 is a; perspective view of one of the bag 65 shaping forms employed in connection with the present invention;

Figure 6 is a fragmentary perspective view showing the construction of the conveyor employed in connection with the bag forming methd and means shown in Figures 1 to 4, inclusive;

Figure 7 is a perspective view showing the manner in which the bag material is wrapped about the shaping form and before closing and sealing the extending end flaps;

Figure 8 is a view similar to Fig 7 after the end flaps of the wrapper are closed and sealed;

Figure 9 is a'perspective view showing one of the two bags into which the wrapper is divided and before the filling of such bag and closing and sealing the open top thereof;

Figure 10 is a more or less diagrammatic side elevational view showing another embodiment of the method of and means for forming bags or tplackages in accordance with the present inven- Figure 11 is a more or less diagrammatic side elevational view showing the adjacent portion of the method of and means for forming the bags as shown in Figure 10; I

Figure 12 is a more or less diagrammatic side elevational view showing another portion of the bag forming method and means shown in Figures ,10 and 11;

Figure 13 is a detail perspective view, partially in section;

Figure 14 is a perspective view of another bag embodying the present invention;

Figure 15 is a perspective view showing another form of bag embodying the invention before filling such bag and closing and sealingthe open top thereof; and

Figures 16 and 17 are perspective views showing another form of bag embodying the present invention.

According to the present invention, the bag is preferably formed of heavily waxed or paraffined paper, although Cellophane or any other suitable bag or package materials are contemplated within the scope of the present invention.

In fact, within certain aspects of the invention, the bag may be formed of ordinary paper, dipped, sprayed, or otherwise treated, preferably inside and outside, with wax, parafiine, liquid Cellophane, moisture-proof lacquer or with any other chemical, chemical mixture or substance that will provide the desired seal, such bag being closed and then sealed with heat and pressure.

The first step is to wrap the sheet 5 of waxed or parafllned paper, "Cellophane or other suitable material around a shaping form 6 with the edges I of the sheet 5 overlapping to form the seam 8 and the ends of the wrapper extending beyond the ends of the form. The opposite nar-' row sides of the extending portions of the wrapper 5 are folded in at 9 (Figure '7).

In Figures 1 to 4, inclusive, the wrapping of the sheet 5 around the form 6 and the forming of the folds 9 are accomplished on a table l0 (Figure 1) by any suitable or preferred means such, for example, as the means now commonly employed for wrapping similar sheets around waxed stiff paper board containers and the like.

The seam 8 is disposed downwardly on the table I 0, and the form 6 with the wrapper thus -folded is advanced to the left (Figure 1) over a hot iron II and between a pressure roller l2 and a compression belt l3. The hot iron H, pressure roller l2 and compression belt I3 constitute heat and pressure means for sealing the overlapping edges 1 together along the seam 8 by the wax, parafiine, or other substance, on the sheet 5, or by the Cellophane" constituting such sheet or applied thereto. The form 6 constitutes a rigid backing which enables such sealing by heat and pressure along the-seam 8, particularly without an inner carton for backing the flexible sheet. The compression belt l3 travels over suitable pulleys or sheaves I 4.

The shaping form 6 with the sheet 5 as thus wrapped and folded thereon is then advanced as, for example, by mechanical advancing fingers or other suitable means from the table 10 onto an endless belt or conveyor l5 which is trained about pulleys I6 and travels in the direction indicated by the arrow I! (Figure 1). Where the bag is formed of waxed or paraflined paper, melted wax, parafiine, or other suitable material is preferably sprayed at l8, as the wrapped forms 6 travel along with the movement of the conveyor I5, thoroughly over the inner surfaces of the extending flaps l9 and I9, and over at least the portions of the folds 9 which are subsequently covered by the flaps l9 and I9. It is immaterial if, in spraying wa-x on the inner surfaces of the extending end flaps and folds of the wrapper, wax is also sprayed on the exposed ends of the form. It is to be understood that the wax or parafline spraying devices are duplicated at. opposite sides of the conveyor l5.

Beyond the spraying of melted wax at I9 and in the direction of movement of the conveyor I 5, folding devices are provided at 20 to fold the bottom flaps l9 to closed position, and beyond these folding devices 20 a second set of folding devices at 2| fold the top flaps Hi to closed position overlapping the bottom flaps l9. After leaving the folding devices at 2|, the wrapped form "with the ends of the sheet 5 as now folded closed, moves between heated irons 22, springpressed at 23. These heated and spring-pressed irons 22 seal the internally sprayed and closed flaps l9 and I9 by heat and pressure, the forms 6 again constituting rigid backings which enable such sealing of the flaps l9 and I9 by heat and pressure. The folding devices 20 and 2|, and heat and pressure irons 22, are duplicated at opposite sides of the machine as shown in Figure 3 to perform the same operations at each of the opposite ends of the wrapper.

Thereupon, the wrapped forms move between pressure members 24 for holding the sealed end flaps l9, l9 closed, and into a longitudinally extending cooling chamber 25 supplied at its right hand end (Figures 1 and 3) with cold air or other suitable cooling means by a connected duct 26.

The compression belt l3 preferably extends from position at one end over the pressure roller I2 to position at its opposite end over the heat and pressure sealing means at 22 and adjacent the duct 26. As the wrapped shaping forms pass successively through the chamber 25, the wax or parafline is cooled and thoroughly set, and the wrappers 5 are now completely folded and sealed about the forms 6 and are of precisely the same shape as the forms.

It is appropriate here to point out that each of the shaping forms 6 is preferably completely encircled intermediate its ends by a groove 28, the purpose of which will now appear. These forms may be made of wood, metal, or any other suitable or preferred material. Where they are made of metal, they are preferably cored or hollowed out as shown at 29 (Figure 5).

Upon leaving the left hand end of the cooling chamber 25 (Figure l), the wrapped forms travel between upper and lower knife members 30 and 30', which knife members operate in the groove 28 to cut across the wide sides of the wrapper intermediate the ends of the wrapper. Beyond the knife members 30 and 30' in the direction of travel of the upper run of the conveyor I5 radial fingers 32 on a rotary turning mechanism 33 (Figure 2) engage the wrapped forms successively as they reach the position for such engagement and turn the wrapped forms through approximately 90 degrees to position the same with their wide sides generally vertically and their narrow sides generally horizontally. The fingers 32, which turn in the direction indicated by the arrow in Figure 2, move up into engagement with the wrapped forms through a longitudinally extending opening 35 between the endless conveyor elements which are joined together by the transverse members 36, as shown in Figure 6, to form the conveyor I5.

As thus positioned by the turning mechanism 33, the wrapped forms move between a second pair of knife members 38 and 38' which operate in the grooves 28 to cut across the narrow sides of the wrapper intermediate the ends thereof. This completely separates one half of the wrapper from the other half at a completely encircling cut intermediate the ends of the wrapper.

From the knife members 38, 38' and the tuming mechanism at 33, the forms 6 carrying the two halves of the wrapper drop into a chute 40. At this position of the machine, girls or other operators may manually-separate the two halves of the wrappers from the forms. The opposite sides of the forms 6 may be provided with depressions 29'. The two halves of the wrapper are identical, and each now forms a bag, as shown at 42 in Figure 9, with an open top at 43, and otherwise completely sealed along the seam 8 and at the bottom folds 9 and overlapping bottom flaps l9 and I9.

Heat may be applied to the forms 6 to expedite removal of the bags therefrom, and it is to be understood that the bags may be removed from the forms mechanically or otherwise, instead of manually. For example, vacuum may be applied to the closed ends of the bags by suction cups or the like to remove the bags from the forms 5.

The bag forming process as thus far described is a two bag process in the sense that two bags are formed by the formation of each wrapper. The bag output is thus double the wrapper forming capacity'of the machine. A practical embodiment of the invention may have a capacity of about 120 bags per m nute, although wide variations in this capacity are contemplated within the scope of the present invention. In fact, insofar as the method of the present invention is concerned, the two bag forming aspect of the invention may be carried out by hand and at any desired rate.

Upon completion of the bags 42 to the extent thus far described, these bags are placed upright upon an endless belt or conveyor "45 with their closed and sealed bottoms on the conveyor 45 and their open tops 43 directed upwardly. The placing of the bags 42 upon the conveyor 45 may be done manually, or it may be accomplished mechanically and automatically in the operation of the machine in any suitable or desired manner.

The conveyor 45 operates over pulleys or sheaves 46 and travels in the direction indicated A the purpose of placing the desired contents in the bag.

In the embodiment of the invention shown in Figures 10 to 13, inclusive, the forms 6, which correspond to theforms 6 of the preceding em- 5 bodiment of the invention, are fed ahead to the left manually or mechanically over a table (Figure 10) and successively into position over a vertically reciprocating plunger 9|.

The waxed or paraifined paper, Cellophane, or other suitable bag material, is fed to position and cut into strips 92 of the desired length, which are disposed beneath suitable guides 93. The plunger 9| lifts each form 6 up between the guides 93 as the forms are successively fed to position upon the plunger 9|, each form 6' carrying one sheet or strip 92 of wrapping material with it, and by cooperation with the guides 93, folding the extending sides of the sheet downwardly about the sides of the form. The form 6, with the sheet 92 thus folded thereon, is raised above the guides 93 sufliciently to permit the extending bottom finger 94 of the horizontally r-eciprocating plunger 95 to move beneath the bottom of the form and fold the'lower portion of the right hand side of the folded sheet 92 in beneath the bottom of the form 6. Continued movement of the plunger 95 brings the side 95 of the plunger into cooperation with the wrapper covered side of the form 6, and moves the form, with the wrapper thereon, to the left (Figure 10) and onto a pair of transversely spaced rods or tracks 91. As the form with the wrapper thereon moves to the left and onto the rods 91, the lower portion of the left hand side of the folded sheet 92 is folded in beneath the bottom of the form 6, and preferably to position to overlap the infolded opposite margin of the sheet.

Projections 98 on the plunger 95 engage the sides of the wrapper beyond the ends of the form and produce folds similar to those shown at 9 in Figure 7 along one side of the wrapper, it being understood that other suitable means, such as projections beyond the ends of the form and in the path of movement of the projecting ends of the wrapper to the left and onto the guides 91, engage the opposite side of the wrapper to produce folds similar to the folds 9 along the opposite side of the wrapper.

An advancing device I00, having depending fingers IOI, is lowered and lifted to engage a series of the wrapped forms, five in the illustrated embodiment of the invention. This advancing de vice I00 is also moved back and forth generally lengthwise of the rods 91 to advance the forms to the left (Figure 10) along the rods 91, each wrapped form being advanced a distance I02 (Figure 10) with each operation of the advancing device I00. Suitable lever mechanism at I03 operates the advancing device I00 in the manner set forth.

As the forms, as thus far wrapped, are thus advanced, they move up the inclined portions I04 of the rods 91, and then down and along continuations of said rods 91, as shown in Figure 11. An endless conveyor I05 operates over sheaves or sprockets I06 and I01, and beneath the lengthwise extending portions of the rods 91 as shown in Figure 11. This conveyor I05 has transverse members I08 of channel section which engage the wrapped forms and feed the same along therods 91 toward the left, as viewed in Figure 11.

Folding devices I09, ,in thepath of travel of the opposite extending endspfthe wrappers on the forms in their movement along the rods 91; 75

fold the flaps corresponding to the bottom flaps I9 of the previous embodiment to closed position,

and beyond these folding devices I09 a second set of folding devices H0, also in the path of travel of the opposite extending ends of the wrappers, fold the top flaps corresponding to the flaps I9 of the previous embodiment of the invention to closed position overlapping the bottom flaps I9. After leaving the folding devices H0, the ends of the wrapped forms with the ends of the wrappers as now folded closed thereon move between a pair of plates H2, one at each of the opposite sides of the machine. These plates H2 have openings H3 cored therein, and wax, paraffine, or other suitable material as herein set forth, is delivered into the hollow interiors of these plates by tubes II4 leading from a suitable source H5 of wax, parafline, or other suitable material. Longitudinal slits H6 are formed in the plates H2 in communication with the hollow interiors thereof, and open from the inner surfaces of these plates to permit the wax or other material to drip or flow onto and over the folded ends of the wrappers as the wrapped forms pass between the plates H2.

Thereupon, the folded ends of the wrappers, which are now closed about the forms 6, move between heated plates I20, which may be springpressed or otherwise adapted to apply heat and pressure to seal the closed ends of the wrappers to which the additional wax or other material has now been applied. A compression and guide member I2I guides and holds the wrapped forms down firmly upon the rods 91 in their movement along the conveyor I05 as thus far described.

The wrapped forms, with the wrapper completely sealed about said forms by heat and pressure, thereupon move into a longitudinally extending cooling chamber I23 supplied, at its right hand end (Figure 11), with cold air or other suitable cooling means by a cold air supply nozzle I24. In their movement through the cooling chamber I23, the folded ends of the wrappers are held closed and sealed by compression belts I25, one disposed along each of the opposite ends of the wrapped forms and trained at one end over sheaves I26 (Figure 11), and at their opposite ends over sheaves I2I (Figure 12). In passing through the cooling chamber I23, the sealed wrappers are cooled and set, whereby all seams and folds are rendered moisture proof.

Upon leaving the left hand end of the cooling chamber I23 (Figure 12), the wrapped forms travel between upper and lower knife members I29 and I30, respectively. These knife members operate in the groovesTB (Figure 5) in the forms 6 to cut across the wide sides of the wrappers, as in the preceding embodiment of the invention. A plate I3I preferably underlies the rods 9! at and beyond the left hand end of the cooling.

chamber I23, as shown in Figure 12. Beyond the knife members I29 and I30 in the direction of travel of the wrapped forms and after the wrappers are cut across their wide sides, the Wrapped forms move over the upper end of a tube I32 which passes through the plate I3I intermediate the ends of the wrapped forms and discharges a blast of air into the cuts produced across the wide sides of the wrappers by the knife members I29 and I 30. This blast of air loosens the wrappers from the forms 6.

As the forms with the wrappers thereon leave the left hand end of the compression belt I25 (Figure 12), they drop down edgewise along the downturned rods or tracks 91 and into position ahead of a reciprocating plunger I35, with their wide sides disposed vertically instead of horizontally as in their travel up to this position. The plunger I35 advances the forms with the wrappers thereon to the left (Figure 12) along a. pair of transversely spaced rods or tracks I36. As thus advanced, the wrapped forms move between a second pair of knife members I39 and I40 which operate in the grooves 28 (Figure 5) to cut across the narrow sides of the wrappers intermediate the ends thereof. This completely separates one .half of the wrapper from the other half at a completely encircling cut intermediate the ends of the wrapper.

At this position, girls or other operators may manually separate the two halves of the wrappers from the forms 6, the depressions 29' in the forms facilitating the desired gripping engagement of the fingers with the narrow sides of the bags or wrappers, and further facilitating handling of the forms and removal of the bags therefrom. In this respect, the knife members I39 and I40, while sharp at their forward ends to cut the wrappers as above set forth, are preferably blunt or rounded at their opposite ends as shown at I42 (Figure 13), these blunt or rounded ends by their interlocking engagement in the grooves 28 holding the forms 6 against endwise displacement during removal of the two halves of the wrappers therefrom.

The two removed halves of the wrappers are identical, and each now forms a bag, as shown at 42 in Figure 9, with an open top at 43 and otherwise completely sealed along the seam 8 and at the bottom folds 9 and overlapping bottom flaps I9 and I9".

Upon removal of the bags from the forms 6, these forms 6 are placed upon an endless conveyor I45 which overlies the parts of the ma chine above set forth and travels in the direction of the arrow I45 (Figures 10, 11 and 12) to return the forms 6 to the opposite end of the machine. At the right hand end of the machine (Figure the conveyor I 45 delivers the forms 6 to a curved track I46, and the forms slide down this track to position upon the table 90 for the formation of bags thereon as already set forth.

The track I46 may be formed of curved rods for holding the forms against sidewise and endwise displacement and for guiding the same down to position upon the table 90. The conveyor I45 is trained at its opposite ends over sheaves or pulleys I41.

Ahead of the track I46 in the path of movement of the forms with the conveyor I45, I provide means at I40 for greasing the entire sides I49 (Figure 10) of the forms in their return movement. This greasing device may comprise a grease receptacle provided with a sponge, cotton, or the like, extending over the entire length of the form for wiping grease over the entire surface I49 of the form in the movement of the form past such greasing device. While I refer to grease, any other substance may be applied to the forms to prevent undesirable sticking or adhesion of the wrappers thereto.

Grease, or any other suitable or preferred substance, is also applied over the ends of the forms 6 for the same purpose, by a pair of greasing devices I50. These second greasing devices I50 are disposed at the lower end of the track I46, one at each of the opposite ends of the forms in their passage therebetween, and wipe the grease or other substance over the ends of the forms in the passage of the same between these greasing devices.

Upon completion of the bags to the extent thus far described, these bags 42 are placed upon a suitable conveyor for the purpose of carrying them beneath suitable filling mechanism for the placing of the contents in the bag.

From the foregoing description, it will now be apparent that the bag shaping forms 6 constitute rigid backing members which enable sealing the bags by heat and pressure without the necessity for an inner carton for backing the flexible bag forming material and notwithstanding the flexible character of the bag material. This sealing of the bag by heat and pressure on a rigid form and subsequent removal, filling, closing, and sealing of the open top of the bag is an important aspect of the present invention, and so far as this aspect of the invention is concerned, the bag may be formed of waxed or paraflined paper, or of Cellophane or any other suitable or preferred moisture-proof material.

The bag 260, for example, shown in Figure 14 is similar to the bag shown in Figure 9, except that it is formed of Cellophane. It is not glued, but is sealed throughout by heat and pressure in the manner herein set forth.

With the present invention, bags formed of Cellophane and the like may be sealed by heat and pressure, and thereby eifectively rendered moisture tight throughout.

Another important aspect of the invention resides in the two bag process wherein the wrapper is closed and sealed about the form and then divided intermediate its ends into a pair of moisture-proof bags.

I further contemplate, within the scope o the present invention, making a double thickness bag as shown in Figure 15, the inner bag 265 being of ordinary paper, waxed paper, or other suitable material, and the outer bag 266 being formed of Cellophane or other suitable material, formed, folded, closed and sealed by heat and pressure as herein set forth.

A further embodiment of the invention con sists, as shown in Figures 16 and 17, in placing the goods in a bag 300, as shown at 302, telescoping another bag 3M over the bag 300 (Figure 17), and then moisture-proofing the telescoping bags to make the same moisture-prooi and seal the space therebetween. Where the two bags 300 and 30! are of plain paper or other instead of moisture-proofing the entire bags, it is only necessary to apply a moisture-proof material about the open end of the outer bag and the jacent portion of the other bag to seal the bags together.

I do not intend to be limited to the precise de' tails shown or described, nor do I intend to limit the use of the bags to any particular goods. Furthermore I do not intend to limit the invention to the precise order of the steps herein recited except as the same are expressly included in the appended claims.

I claim:

1. The method of forming moisture-proof packages which comprises closing a moistureproof sheet around a shaping form to form a pair of moisture-proof packages, and removing said packages from said shaping form.

2. The method of forming moisture-proof packages which comprises wrapping a moistureproof sheet around a shaping form with the ends of the sheet extending from the form, joining the edges of the sheet, closing the extending ends of the sheet to form a closed wrapper, and dividing the wrapper intermediate the ends thereof whereby to form a pair of packages having open ends formed where the wrapper is divided.

3. The method of forming moisture-proof packages which'comprises wrapping a sheet of waxed paper around a shaping form with the edges of the sheet overlapping and the ends of the sheet extending from said form, applying heat and pressure to the overlapping edges of the sheet to seal the same by the wax thereon, folding the extending ends of the sheet closed, applying heat and pressure to said closed ends to seal the same by the wax thereon, and dividing the wrapper intermediate the ends thereof whereby to form a pair of packages having open ends formed where the wrapper is divided.

4. The method of forming moisture-proo packages which comprises closing a moistureproof sheet around a shaping form having a gropve surrounding the same to form a closed wrapper, dividing the wrapper along the groove in said shaping form to produce a pair of moisture-proof packages, and removing said packages from said shaping form.

5. The method of forming moisture-proof packages which comprises wrapping a moistureproof sheet around a shaping form having a groove surrounding the same with the ends of the sheet extending from the form, joining the edges of the sheet, closing the extending ends of the sheet to form a closed wrapper, and dividing the wrapper intermediate the ends thereof and along the groove in said shaping form whereby to produce a pair of packages having open ends formed-where the wrapper is divided.

6. The method ,of forming a moisture-proof bag which comprises folding and completely closing a moisture-proof bag material about a rigid form, applying heat and pressure to the folds and seams of said bag material and against said rigid form to seal the same by the moistureproof substance thereon, dividing the wrapper thus formed into a pair of moisture-proof bags and removing said bags from the form.

'7. In a packaging machine, means for moving rigid forms wrapped in moisture-proof wrappers with the sides of said wrappers overlapping and .closed wrapper, dividing the wrapper to form a sealed together and flaps extending from the ends of said wrappers, means along the path of movement of the wrapped forms for closing said flaps and sealing the same by heat and pressure and against said forms, and knife means for dividing the wrappers intermediate their ends into moisture-proof bags.

8. In a packaging machine, means for moving rigid forms wrapped in moisture-proof wrappers with the sides, of said wrappers overlapping and sealed together and flaps extending from the ends of. said wrappers, means along the path of movement of. the wrapped forms for closing said flaps and sealing the same by heat and pressure and against said forms, knife means for cutting across one pair of opposite sides of the'wrapper intermediate its ends, and second knife means for cutting across the other pair of opposite sides of the wrappers to divide the wrappers into moisture-proof bags.

9. In a packaging machine, means for moving rigid forms wrapped in moisture-proof wrappers with the sides of said wrappers overlapping and sealed together and flaps extending from the ends of said wrappers, means along the path of movement of the wrapped forms for closing said flaps and sealing the same by heat and pressure and against said forms, knife means for cutting across one pair of opposite sides of the wrapper intermediate its ends, and second knife means for cutting across the other pair of opposite sides of the wrappers to divide the wrappers into moisture-proof bags, said last knife means having interlocking engagement with said forms tohold same against endwise movement in removing the bag from the forms.

10. In a packaging machine, means for moving forms wrapped in waxed paper with the sides of said wrappers overlapping and sealed together and flaps extending from the ends of said wrappers, means along the path of movement of the wrapped forms for applying additional wax to said flaps, means for closing said flaps and sealing the same by the wax thereon, knife means for cutting across one pair of opposite sides of the wrapper intermediate its ends, and second knife means for cutting across the other pair of opposite sides of the wrapper to divide the wrapper intermediate its ends into a pair of moisturetight bags.

11. In a packaging machine, a conveyor for moving closed wrappers of generally rectangular section, knife means for cutting across one pair of opposite sides of the wrappers in the movement of said wrappers on said conveyor, second knife means, and means for turning said wrappers through approximately degrees for engagement of said second knife means with the other pair of opposite sides of the wrapper whereby to cut across said other sides and divide the wrapper intermediate its ends into two bags.

12. The method of forming bags which comprises closing a sheet around a shaping form to form a wrapper completely closed about said form and with the ends of the wrapper and the sides thereof shaped and positioned generally to conform with the shape and position of said ends and sides when the bags are filled, sealing the adjacent edges and the closed ends of the wrapper while the same is positioned on said form, and dividing the wrapper before removal from said form intermediate the closed ends to form a pair of bags. v

13. In combination, means for closing a sheet around a shaping form to form a wrapper completely closed about said form-and with the ends of the wrapper and the sides thereof shaped and positioned generally to conform with the shape and position of said ends and sides when the bags are filled, means for sealing the adjoining edges and the closed ends of the wrapper while the same is positioned on said form, and means for dividing the wrapper before removal from said form intermediate the closed ends to form a pair of bags.

JOSEPH W. FAY. 

